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windows-nt/Source/XPSP1/NT/com/oleutest/letest/ole2ui/insobj.c

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2020-09-26 03:20:57 -05:00
/*
* INSOBJ.C
*
* Implements the OleUIInsertObject function which invokes the complete
* Insert Object dialog. Makes use of the OleChangeIcon function in
* ICON.C.
*
* Copyright (c)1993 Microsoft Corporation, All Rights Reserved
*/
#define STRICT 1
#include "ole2ui.h"
#include <commdlg.h>
#include <memory.h>
#include <direct.h>
#include <malloc.h>
#include <dos.h>
#include <stdlib.h>
#include "common.h"
#include "utility.h"
#include "icon.h"
#include "insobj.h"
#include "resimage.h"
#include "iconbox.h"
#include "geticon.h"
#define IS_FILENAME_DELIM(c) ( (c) == TEXT('\\') || (c) == TEXT('/') || (c) == TEXT(':') )
/*
* OleUIInsertObject
*
* Purpose:
* Invokes the standard OLE Insert Object dialog box allowing the
* user to select an object source and classname as well as the option
* to display the object as itself or as an icon.
*
* Parameters:
* lpIO LPOLEUIINSERTOBJECT pointing to the in-out structure
* for this dialog.
*
* Return Value:
* UINT OLEUI_SUCCESS or OLEUI_OK if all is well, otherwise
* an error value.
*/
STDAPI_(UINT) OleUIInsertObject(LPOLEUIINSERTOBJECT lpIO)
{
UINT uRet;
HGLOBAL hMemDlg=NULL;
HRESULT hrErr;
uRet=UStandardValidation((LPOLEUISTANDARD)lpIO, sizeof(OLEUIINSERTOBJECT)
, &hMemDlg);
if (OLEUI_SUCCESS!=uRet)
return uRet;
//Now we can do Insert Object specific validation.
// NULL is NOT valid for lpszFile
if ( (NULL == lpIO->lpszFile)
|| (IsBadReadPtr(lpIO->lpszFile, lpIO->cchFile))
|| (IsBadWritePtr(lpIO->lpszFile, lpIO->cchFile)) )
uRet=OLEUI_IOERR_LPSZFILEINVALID;
if (NULL != lpIO->lpszFile
&& (lpIO->cchFile <= 0 || lpIO->cchFile > OLEUI_CCHPATHMAX_SIZE))
uRet=OLEUI_IOERR_CCHFILEINVALID;
if (0!=lpIO->cClsidExclude)
{
if (NULL!=lpIO->lpClsidExclude && IsBadReadPtr(lpIO->lpClsidExclude
, lpIO->cClsidExclude*sizeof(CLSID)))
uRet=OLEUI_IOERR_LPCLSIDEXCLUDEINVALID;
}
//If we have flags to create any object, validate necessary data.
if (lpIO->dwFlags & (IOF_CREATENEWOBJECT | IOF_CREATEFILEOBJECT | IOF_CREATELINKOBJECT))
{
if (NULL!=lpIO->lpFormatEtc
&& IsBadReadPtr(lpIO->lpFormatEtc, sizeof(FORMATETC)))
uRet=OLEUI_IOERR_LPFORMATETCINVALID;
if (NULL!=lpIO->ppvObj && IsBadWritePtr(lpIO->ppvObj, sizeof(LPVOID)))
uRet=OLEUI_IOERR_PPVOBJINVALID;
if (NULL!=lpIO->lpIOleClientSite
&& IsBadReadPtr(lpIO->lpIOleClientSite->lpVtbl, sizeof(IOleClientSiteVtbl)))
uRet=OLEUI_IOERR_LPIOLECLIENTSITEINVALID;
if (NULL!=lpIO->lpIStorage
&& IsBadReadPtr(lpIO->lpIStorage->lpVtbl, sizeof(IStorageVtbl)))
uRet=OLEUI_IOERR_LPISTORAGEINVALID;
}
if (OLEUI_ERR_STANDARDMIN <= uRet)
{
if (NULL!=hMemDlg)
FreeResource(hMemDlg);
return uRet;
}
//Now that we've validated everything, we can invoke the dialog.
uRet=UStandardInvocation(InsertObjectDialogProc, (LPOLEUISTANDARD)lpIO
, hMemDlg, MAKEINTRESOURCE(IDD_INSERTOBJECT));
//Stop here if we cancelled or had an error.
if (OLEUI_SUCCESS !=uRet && OLEUI_OK!=uRet)
return uRet;
/*
* If any of the flags specify that we're to create objects on return
* from this dialog, then do so. If we encounter an error in this
* processing, we return OLEUI_IOERR_SCODEHASERROR. Since the
* three select flags are mutually exclusive, we don't have to
* if...else here, just if each case (keeps things cleaner that way).
*/
lpIO->sc=S_OK;
//Check if Create New was selected and we have IOF_CREATENEWOBJECT
if ((lpIO->dwFlags & IOF_SELECTCREATENEW) && (lpIO->dwFlags & IOF_CREATENEWOBJECT))
{
hrErr=OleCreate(&lpIO->clsid, &lpIO->iid, lpIO->oleRender
, lpIO->lpFormatEtc, lpIO->lpIOleClientSite, lpIO->lpIStorage
, lpIO->ppvObj);
lpIO->sc = GetScode(hrErr);
}
//Try Create From File
if ((lpIO->dwFlags & IOF_SELECTCREATEFROMFILE))
{
if (!(lpIO->dwFlags & IOF_CHECKLINK) && (lpIO->dwFlags & IOF_CREATEFILEOBJECT))
{
hrErr=OleCreateFromFileA(&CLSID_NULL, lpIO->lpszFile, &lpIO->iid
, lpIO->oleRender, lpIO->lpFormatEtc, lpIO->lpIOleClientSite
, lpIO->lpIStorage, lpIO->ppvObj);
lpIO->sc = GetScode(hrErr);
}
if ((lpIO->dwFlags & IOF_CHECKLINK) && (lpIO->dwFlags & IOF_CREATELINKOBJECT))
{
hrErr=OleCreateLinkToFileA(lpIO->lpszFile, &lpIO->iid
, lpIO->oleRender, lpIO->lpFormatEtc, lpIO->lpIOleClientSite
, lpIO->lpIStorage, lpIO->ppvObj);
lpIO->sc = GetScode(hrErr);
}
}
//If we tried but failed a create option, then return the appropriate error
if (S_OK!=lpIO->sc)
uRet=OLEUI_IOERR_SCODEHASERROR;
return uRet;
}
/*
* InsertObjectDialogProc
*
* Purpose:
* Implements the OLE Insert Object dialog as invoked through the
* OleUIInsertObject function.
*/
BOOL CALLBACK EXPORT InsertObjectDialogProc(HWND hDlg, UINT iMsg
, WPARAM wParam, LPARAM lParam)
{
LPOLEUIINSERTOBJECT lpOIO;
LPINSERTOBJECT lpIO;
OLEUICHANGEICON ci;
UINT i;
BOOL fCheck=FALSE;
UINT uRet=0;
//Declare Win16/Win32 compatible WM_COMMAND parameters.
COMMANDPARAMS(wID, wCode, hWndMsg);
//This will fail under WM_INITDIALOG, where we allocate it.
lpIO=(LPINSERTOBJECT)LpvStandardEntry(hDlg, iMsg, wParam, lParam, &uRet);
//If the hook processed the message, we're done.
if (0!=uRet)
return (BOOL)uRet;
//Process help message from Change Icon
if (iMsg==uMsgHelp)
{
PostMessage(lpIO->lpOIO->hWndOwner, uMsgHelp, wParam, lParam);
return FALSE;
}
//Process the temination message
if (iMsg==uMsgEndDialog)
{
InsertObjectCleanup(hDlg);
StandardCleanup(lpIO, hDlg);
EndDialog(hDlg, wParam);
return TRUE;
}
switch (iMsg)
{
case WM_INITDIALOG:
return FInsertObjectInit(hDlg, wParam, lParam);
case WM_COMMAND:
switch (wID)
{
case ID_IO_CREATENEW:
FToggleObjectSource(hDlg, lpIO, IOF_SELECTCREATENEW);
break;
case ID_IO_CREATEFROMFILE:
FToggleObjectSource(hDlg, lpIO, IOF_SELECTCREATEFROMFILE);
break;
case ID_IO_LINKFILE:
fCheck=IsDlgButtonChecked(hDlg, wID);
if (fCheck)
lpIO->dwFlags |=IOF_CHECKLINK;
else
lpIO->dwFlags &=~IOF_CHECKLINK;
//Results change here, so be sure to update it.
SetInsertObjectResults(hDlg, lpIO);
UpdateClassIcon(hDlg, lpIO, NULL);
break;
case ID_IO_OBJECTTYPELIST:
switch (wCode)
{
case LBN_SELCHANGE:
UpdateClassIcon(hDlg, lpIO, hWndMsg);
SetInsertObjectResults(hDlg, lpIO);
break;
case LBN_DBLCLK:
//Same as pressing OK.
SendCommand(hDlg, IDOK, BN_CLICKED, hWndMsg);
break;
}
break;
case ID_IO_FILEDISPLAY:
//If there are characters, enable OK and Display As Icon
if (EN_CHANGE==wCode)
{
lpIO->fFileDirty = TRUE;
lpIO->fFileValid = FALSE;
lpIO->fFileSelected=
(0L!=SendMessage(hWndMsg, EM_LINELENGTH, 0, 0L));
EnableWindow(GetDlgItem(hDlg, ID_IO_LINKFILE), lpIO->fFileSelected);
EnableWindow(GetDlgItem(hDlg, ID_IO_DISPLAYASICON), lpIO->fFileSelected);
EnableWindow(GetDlgItem(hDlg, ID_IO_CHANGEICON), lpIO->fFileSelected);
EnableWindow(GetDlgItem(hDlg, IDOK), lpIO->fFileSelected);
}
if (EN_KILLFOCUS==wCode && NULL!=lpIO)
{
if (FValidateInsertFile(hDlg,FALSE,&lpIO->nErrCode)) {
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO, NULL);
UpdateClassType(hDlg, lpIO, TRUE);
} else {
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
UpdateClassType(hDlg, lpIO, FALSE);
}
}
break;
case ID_IO_DISPLAYASICON:
fCheck=IsDlgButtonChecked(hDlg, wID);
EnableWindow(GetDlgItem(hDlg, ID_IO_CHANGEICON), fCheck);
if (fCheck)
lpIO->dwFlags |=IOF_CHECKDISPLAYASICON;
else
lpIO->dwFlags &=~IOF_CHECKDISPLAYASICON;
//Update the internal flag based on this checking
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
lpIO->fAsIconNew=fCheck;
else
lpIO->fAsIconFile=fCheck;
//Re-read the class icon on Display checked
if (fCheck)
{
if (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
{
if (FValidateInsertFile(hDlg, TRUE,&lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO,
GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST));
UpdateClassType(hDlg, lpIO, TRUE);
}
else
{
HWND hWndEC;
lpIO->fAsIconFile= FALSE;
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
SendDlgItemMessage(hDlg, ID_IO_ICONDISPLAY, IBXM_IMAGESET, 0, 0L);
UpdateClassType(hDlg, lpIO, FALSE);
lpIO->dwFlags &=~IOF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, ID_IO_DISPLAYASICON, 0);
hWndEC = GetDlgItem(hDlg, ID_IO_FILEDISPLAY);
SetFocus(hWndEC);
SendMessage(hWndEC, EM_SETSEL, 0, MAKELPARAM(0, (WORD)-1));
return TRUE;
}
}
else
UpdateClassIcon(hDlg, lpIO,
GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST));
}
//Results change here, so be sure to update it.
SetInsertObjectResults(hDlg, lpIO);
/*
* Show or hide controls as appropriate. Do the icon
* display last because it will take some time to repaint.
* If we do it first then the dialog looks too sluggish.
*/
i=(fCheck) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, ID_IO_CHANGEICON, i);
StandardShowDlgItem(hDlg, ID_IO_ICONDISPLAY, i);
break;
case ID_IO_CHANGEICON:
{
LPMALLOC pIMalloc;
HWND hList;
LPTSTR pszString, pszCLSID;
int iCurSel;
// if we're in SELECTCREATEFROMFILE mode, then we need to Validate
// the contents of the edit control first.
if (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
{
if ( lpIO->fFileDirty
&& !FValidateInsertFile(hDlg, TRUE, &lpIO->nErrCode) )
{
HWND hWndEC;
lpIO->fFileDirty = TRUE;
hWndEC = GetDlgItem(hDlg, ID_IO_FILEDISPLAY);
SetFocus(hWndEC);
SendMessage(hWndEC, EM_SETSEL, 0, MAKELPARAM(0, (WORD)-1));
return TRUE;
}
else
lpIO->fFileDirty = FALSE;
}
//Initialize the structure for the hook.
_fmemset((LPOLEUICHANGEICON)&ci, 0, sizeof(ci));
ci.hMetaPict=(HGLOBAL)SendDlgItemMessage(hDlg
, ID_IO_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
ci.cbStruct =sizeof(ci);
ci.hWndOwner=hDlg;
ci.dwFlags =CIF_SELECTCURRENT;
if (lpIO->dwFlags & IOF_SHOWHELP)
ci.dwFlags |= CIF_SHOWHELP;
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
// Initialize clsid...
if (NOERROR != CoGetMalloc(MEMCTX_TASK, &pIMalloc))
return FALSE;
pszString = (LPTSTR)pIMalloc->lpVtbl->Alloc(pIMalloc,
OLEUI_CCHKEYMAX_SIZE +
OLEUI_CCHCLSIDSTRING_SIZE);
hList = GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST);
iCurSel = (int)SendMessage(hList, LB_GETCURSEL, 0, 0L);
SendMessage(hList, LB_GETTEXT, iCurSel, (LONG)pszString);
pszCLSID = PointerToNthField(pszString, 2, TEXT('\t'));
CLSIDFromStringA((LPTSTR)pszCLSID, (LPCLSID)&(ci.clsid));
pIMalloc->lpVtbl->Free(pIMalloc, (LPVOID)pszString);
pIMalloc->lpVtbl->Release(pIMalloc);
}
else // IOF_SELECTCREATEFROMFILE
{
TCHAR szFileName[OLEUI_CCHPATHMAX];
GetDlgItemText(hDlg, ID_IO_FILEDISPLAY, (LPTSTR)szFileName, OLEUI_CCHPATHMAX);
if (NOERROR != GetClassFileA(szFileName, (LPCLSID)&(ci.clsid)))
{
LPTSTR lpszExtension;
int istrlen;
istrlen = lstrlen(szFileName);
lpszExtension = (LPTSTR)szFileName + istrlen -1;
while ( (lpszExtension > szFileName) &&
(*lpszExtension != TEXT('.')) )
lpszExtension--;
GetAssociatedExecutable(lpszExtension, (LPTSTR)ci.szIconExe);
ci.cchIconExe = lstrlen(ci.szIconExe);
ci.dwFlags |= CIF_USEICONEXE;
}
}
//Let the hook in to customize Change Icon if desired.
uRet=UStandardHook(lpIO, hDlg, uMsgChangeIcon
, 0, (LONG)(LPTSTR)&ci);
if (0==uRet)
uRet=(UINT)(OLEUI_OK==OleUIChangeIcon(&ci));
//Update the display and itemdata if necessary.
if (0!=uRet)
{
/*
* OleUIChangeIcon will have already freed our
* current hMetaPict that we passed in when OK is
* pressed in that dialog. So we use 0L as lParam
* here so the IconBox doesn't try to free the
* metafilepict again.
*/
SendDlgItemMessage(hDlg, ID_IO_ICONDISPLAY, IBXM_IMAGESET
, (WPARAM)ci.hMetaPict, 0L);
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
SendMessage(hList, LB_SETITEMDATA, iCurSel, ci.hMetaPict);
}
}
break;
case ID_IO_FILE:
{
/*
* To allow the hook to customize the browse dialog, we
* send OLEUI_MSG_BROWSE. If the hook returns FALSE
* we use the default, otherwise we trust that it retrieved
* a filename for us. This mechanism prevents hooks from
* trapping ID_IO_BROWSE to customize the dialog and from
* trying to figure out what we do after we have the name.
*/
TCHAR szTemp[OLEUI_CCHPATHMAX];
TCHAR szInitialDir[OLEUI_CCHPATHMAX];
DWORD dwOfnFlags;
int nChars;
BOOL fUseInitialDir = FALSE;
nChars = GetDlgItemText(hDlg, ID_IO_FILEDISPLAY, (LPTSTR)szTemp, OLEUI_CCHPATHMAX);
if (FValidateInsertFile(hDlg, FALSE, &lpIO->nErrCode))
{
int istrlen;
GetFileTitle((LPTSTR)szTemp, lpIO->szFile, OLEUI_CCHPATHMAX);
istrlen = lstrlen(lpIO->szFile);
LSTRCPYN((LPTSTR)szInitialDir, szTemp, nChars - istrlen);
fUseInitialDir = TRUE;
}
else // file name isn't valid...lop off end of szTemp to get a
// valid directory
{
#if defined( WIN32 )
TCHAR szBuffer[OLEUI_CCHPATHMAX];
DWORD Attribs;
LSTRCPYN(szBuffer, szTemp, OLEUI_CCHPATHMAX-1);
szBuffer[OLEUI_CCHPATHMAX-1] = TEXT('\0');
if (TEXT('\\') == szBuffer[nChars-1])
szBuffer[nChars-1] = TEXT('\0');
Attribs = GetFileAttributes(szBuffer);
if (Attribs != 0xffffffff &&
(Attribs & FILE_ATTRIBUTE_DIRECTORY) )
{
lstrcpy(szInitialDir, (LPTSTR)szBuffer);
fUseInitialDir = TRUE;
}
#else
static TCHAR szBuffer[OLEUI_CCHPATHMAX];
static int attrib ;
LSTRCPYN(szBuffer, szTemp, OLEUI_CCHPATHMAX-1);
szBuffer[OLEUI_CCHPATHMAX-1] = TEXT('\0');
AnsiToOem(szBuffer, szBuffer);
#if defined( OBSOLETE ) // fix bug# 3575
if (TEXT('\\') == szBuffer[nChars-1])
szBuffer[nChars-1] = TEXT('\0');
if(0 == _dos_getfileattr(szBuffer, &attrib))
#endif // OBSOLETE
{
lstrcpy(szInitialDir, (LPTSTR)szBuffer);
fUseInitialDir = TRUE;
}
#endif
*lpIO->szFile = TEXT('\0');
}
uRet=UStandardHook(lpIO, hDlg, uMsgBrowse
, OLEUI_CCHPATHMAX_SIZE, (LPARAM)(LPSTR)lpIO->szFile);
dwOfnFlags = OFN_FILEMUSTEXIST;
if (lpIO->lpOIO->dwFlags & IOF_SHOWHELP)
dwOfnFlags |= OFN_SHOWHELP;
if (0==uRet)
uRet=(UINT)Browse(hDlg,
lpIO->szFile,
fUseInitialDir ? (LPTSTR)szInitialDir : NULL,
OLEUI_CCHPATHMAX_SIZE,
IDS_FILTERS,
dwOfnFlags);
//Only update if the file changed.
if (0!=uRet && 0!=lstrcmpi(szTemp, lpIO->szFile))
{
SetDlgItemText(hDlg, ID_IO_FILEDISPLAY, lpIO->szFile);
lpIO->fFileSelected=TRUE;
if (FValidateInsertFile(hDlg, TRUE, &lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO, NULL);
UpdateClassType(hDlg, lpIO, TRUE);
// auto set OK to be default button if valid file
SendMessage(hDlg, DM_SETDEFID,
(WPARAM)GetDlgItem(hDlg, IDOK), 0L);
SetFocus(GetDlgItem(hDlg, IDOK));
}
else // filename is invalid - set focus back to ec
{
HWND hWnd;
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
hWnd = GetDlgItem(hDlg, ID_IO_FILEDISPLAY);
SetFocus(hWnd);
SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(0, (WORD)-1));
}
//Once we have a file, Display As Icon is always enabled
EnableWindow(GetDlgItem(hDlg, ID_IO_DISPLAYASICON), TRUE);
//As well as OK
EnableWindow(GetDlgItem(hDlg, IDOK), TRUE);
}
}
break;
case IDOK:
{
HWND hListBox;
WORD iCurSel;
TCHAR szBuffer[OLEUI_CCHKEYMAX + OLEUI_CCHCLSIDSTRING];
LPTSTR lpszCLSID;
if ((HWND)(LOWORD(lParam)) != GetFocus())
SetFocus((HWND)(LOWORD(lParam)));
// If the file name is clean (already validated), or
// if Create New is selected, then we can skip this part.
if ( (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
&& (TRUE == lpIO->fFileDirty) )
{
if (FValidateInsertFile(hDlg, TRUE, &lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO, NULL);
UpdateClassType(hDlg, lpIO, TRUE);
}
else // filename is invalid - set focus back to ec
{
HWND hWnd;
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
hWnd = GetDlgItem(hDlg, ID_IO_FILEDISPLAY);
SetFocus(hWnd);
SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(0, (WORD)-1));
UpdateClassType(hDlg, lpIO, FALSE);
}
return TRUE; // eat this message
}
else if ( (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
&& (FALSE == lpIO->fFileValid) )
{
// filename is invalid - set focus back to ec
HWND hWnd;
TCHAR szFile[OLEUI_CCHPATHMAX];
if (0!=GetDlgItemText(hDlg, ID_IO_FILEDISPLAY,
szFile, OLEUI_CCHPATHMAX))
{
OpenFileError(hDlg, lpIO->nErrCode, szFile);
}
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
hWnd = GetDlgItem(hDlg, ID_IO_FILEDISPLAY);
SetFocus(hWnd);
SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(0, (WORD)-1));
UpdateClassType(hDlg, lpIO, FALSE);
return TRUE; // eat this message
}
//Copy the necessary information back to the original struct
lpOIO=lpIO->lpOIO;
lpOIO->dwFlags=lpIO->dwFlags;
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
hListBox=GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST);
iCurSel=(WORD)SendMessage(hListBox, LB_GETCURSEL, 0, 0);
if (lpIO->dwFlags & IOF_CHECKDISPLAYASICON)
{
lpOIO->hMetaPict=(HGLOBAL)SendMessage(hListBox,
LB_GETITEMDATA, iCurSel, 0L);
/*
* Set the item data to 0 here so that the cleanup
* code doesn't delete the metafile.
*/
SendMessage(hListBox, LB_SETITEMDATA, iCurSel, 0L);
}
else
lpOIO->hMetaPict = (HGLOBAL)NULL;
SendMessage(hListBox, LB_GETTEXT, iCurSel
, (LPARAM)(LPTSTR)szBuffer);
lpszCLSID=PointerToNthField((LPTSTR)szBuffer, 2, TEXT('\t'));
CLSIDFromStringA(lpszCLSID, &lpOIO->clsid);
}
else // IOF_SELECTCREATEFROMFILE
{
if (lpIO->dwFlags & IOF_CHECKDISPLAYASICON)
{
// get metafile here
lpOIO->hMetaPict = (HGLOBAL)SendDlgItemMessage(hDlg,
ID_IO_ICONDISPLAY,
IBXM_IMAGEGET,
0, 0L);
}
else
lpOIO->hMetaPict = (HGLOBAL)NULL;
}
GetDlgItemText(hDlg, ID_IO_FILEDISPLAY,
lpIO->szFile, lpOIO->cchFile);
LSTRCPYN(lpOIO->lpszFile, lpIO->szFile, lpOIO->cchFile);
SendMessage(hDlg, uMsgEndDialog, OLEUI_OK, 0L);
}
break;
case IDCANCEL:
SendMessage(hDlg, uMsgEndDialog, OLEUI_CANCEL, 0L);
break;
case ID_OLEUIHELP:
PostMessage(lpIO->lpOIO->hWndOwner, uMsgHelp
, (WPARAM)hDlg, MAKELPARAM(IDD_INSERTOBJECT, 0));
break;
}
break;
default:
{
if (lpIO && iMsg == lpIO->nBrowseHelpID) {
PostMessage(lpIO->lpOIO->hWndOwner, uMsgHelp,
(WPARAM)hDlg, MAKELPARAM(IDD_INSERTFILEBROWSE, 0));
}
}
break;
}
return FALSE;
}
/*
* FInsertObjectInit
*
* Purpose:
* WM_INITIDIALOG handler for the Insert Object dialog box.
*
* Parameters:
* hDlg HWND of the dialog
* wParam WPARAM of the message
* lParam LPARAM of the message
*
* Return Value:
* BOOL Value to return for WM_INITDIALOG.
*/
BOOL FInsertObjectInit(HWND hDlg, WPARAM wParam, LPARAM lParam)
{
LPOLEUIINSERTOBJECT lpOIO;
LPINSERTOBJECT lpIO;
RECT rc;
DWORD dw;
HFONT hFont;
HWND hList;
UINT u;
BOOL fCheck;
CHAR *pch; // pointer to current working directory
// ANSI string (to use with _getcwd)
//1. Copy the structure at lParam into our instance memory.
lpIO=(LPINSERTOBJECT)LpvStandardInit(hDlg, sizeof(INSERTOBJECT), TRUE, &hFont);
//PvStandardInit send a termination to us already.
if (NULL==lpIO)
return FALSE;
lpOIO=(LPOLEUIINSERTOBJECT)lParam;
//2. Save the original pointer and copy necessary information.
lpIO->lpOIO =lpOIO;
lpIO->dwFlags=lpOIO->dwFlags;
lpIO->clsid =lpOIO->clsid;
if ( (lpOIO->lpszFile) && (TEXT('\0') != *lpOIO->lpszFile) )
LSTRCPYN((LPTSTR)lpIO->szFile, lpOIO->lpszFile, OLEUI_CCHPATHMAX);
else
*(lpIO->szFile) = TEXT('\0');
lpIO->hMetaPictFile = (HGLOBAL)NULL;
//3. If we got a font, send it to the necessary controls.
if (NULL!=hFont)
{
SendDlgItemMessage(hDlg, ID_IO_RESULTTEXT, WM_SETFONT, (WPARAM)hFont, 0L);
SendDlgItemMessage(hDlg, ID_IO_FILETYPE, WM_SETFONT, (WPARAM)hFont, 0L);
}
//4. Fill the Object Type listbox with entries from the reg DB.
hList=GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST);
UFillClassList(hList, lpOIO->cClsidExclude, lpOIO->lpClsidExclude
, (BOOL)(lpOIO->dwFlags & IOF_VERIFYSERVERSEXIST));
//Set the tab width in the list to push all the tabs off the side.
GetClientRect(hList, &rc);
dw=GetDialogBaseUnits();
rc.right =(8*rc.right)/LOWORD(dw); //Convert pixels to 2x dlg units.
SendMessage(hList, LB_SETTABSTOPS, 1, (LPARAM)(LPINT)&rc.right);
//5. Initilize the file name display to cwd if we don't have any name.
if (TEXT('\0') == *(lpIO->szFile))
{
TCHAR tch[OLEUI_CCHPATHMAX];
pch=_getcwd(NULL, OLEUI_CCHPATHMAX);
if (*(pch+strlen(pch)-1) != '\\')
strcat(pch, "\\"); // put slash on end of cwd
#ifdef UNICODE
mbstowcs(tch, pch, OLEUI_CCHPATHMAX);
#else
strcpy(tch, pch);
#endif
SetDlgItemText(hDlg, ID_IO_FILEDISPLAY, tch);
lpIO->fFileDirty = TRUE; // cwd is not a valid filename
#ifndef __TURBOC__
free(pch);
#endif
}
else
{
SetDlgItemText(hDlg, ID_IO_FILEDISPLAY, lpIO->szFile);
if (FValidateInsertFile(hDlg, FALSE, &lpIO->nErrCode))
lpIO->fFileDirty = FALSE;
else
lpIO->fFileDirty = TRUE;
}
//6. Initialize the selected type radiobutton.
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
StandardShowDlgItem(hDlg, ID_IO_FILETEXT, SW_HIDE);
StandardShowDlgItem(hDlg, ID_IO_FILETYPE, SW_HIDE);
StandardShowDlgItem(hDlg, ID_IO_FILEDISPLAY, SW_HIDE);
StandardShowDlgItem(hDlg, ID_IO_FILE, SW_HIDE);
StandardShowDlgItem(hDlg, ID_IO_LINKFILE, SW_HIDE);
CheckRadioButton(hDlg, ID_IO_CREATENEW, ID_IO_CREATEFROMFILE, ID_IO_CREATENEW);
lpIO->fAsIconNew=(0L!=(lpIO->dwFlags & IOF_CHECKDISPLAYASICON));
SetFocus(hList);
}
else
{
/*
* Use pszType as the initial File. If there's no initial
* file then we have to remove any check from Display As
* Icon. We also check Link if so indicated for this option.
*/
StandardShowDlgItem(hDlg, ID_IO_OBJECTTYPELIST, SW_HIDE);
StandardShowDlgItem(hDlg, ID_IO_OBJECTTYPETEXT, SW_HIDE);
// Don't preselect display as icon if the filename isn't valid
if (TRUE == lpIO->fFileDirty)
lpIO->dwFlags &= ~(IOF_CHECKDISPLAYASICON);
if (IOF_DISABLELINK & lpIO->dwFlags)
StandardShowDlgItem(hDlg, ID_IO_LINKFILE, SW_HIDE);
else
{
CheckDlgButton(hDlg, ID_IO_LINKFILE
, (BOOL)(0L!=(lpIO->dwFlags & IOF_CHECKLINK)));
}
CheckRadioButton(hDlg, ID_IO_CREATENEW, ID_IO_CREATEFROMFILE, ID_IO_CREATEFROMFILE);
lpIO->fAsIconFile=(0L!=(lpIO->dwFlags & IOF_CHECKDISPLAYASICON));
SetFocus(GetDlgItem(hDlg, ID_IO_FILEDISPLAY));
}
//7. Initialize the Display as Icon state
fCheck=(BOOL)(lpIO->dwFlags & IOF_CHECKDISPLAYASICON);
u=fCheck ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, ID_IO_CHANGEICON, u);
StandardShowDlgItem(hDlg, ID_IO_ICONDISPLAY, u);
CheckDlgButton(hDlg, ID_IO_DISPLAYASICON, fCheck);
//8. Show or hide the help button
if (!(lpIO->dwFlags & IOF_SHOWHELP))
StandardShowDlgItem(hDlg, ID_OLEUIHELP, SW_HIDE);
//9. Initialize the result display
UpdateClassIcon(hDlg, lpIO, GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST));
SetInsertObjectResults(hDlg, lpIO);
//10. Change the caption
if (NULL!=lpOIO->lpszCaption)
SetWindowText(hDlg, lpOIO->lpszCaption);
//11. Hide all DisplayAsIcon related controls if it should be disabled
if ( lpIO->dwFlags & IOF_DISABLEDISPLAYASICON ) {
StandardShowDlgItem(hDlg, ID_IO_DISPLAYASICON, SW_HIDE);
StandardShowDlgItem(hDlg, ID_IO_CHANGEICON, SW_HIDE);
StandardShowDlgItem(hDlg, ID_IO_ICONDISPLAY, SW_HIDE);
}
lpIO->nBrowseHelpID = RegisterWindowMessage(HELPMSGSTRING);
//All Done: call the hook with lCustData
UStandardHook(lpIO, hDlg, WM_INITDIALOG, wParam, lpOIO->lCustData);
/*
* We either set focus to the listbox or the edit control. In either
* case we don't want Windows to do any SetFocus, so we return FALSE.
*/
return FALSE;
}
/*
* UFillClassList
*
* Purpose:
* Enumerates available OLE object classes from the registration
* database and fills a listbox with those names.
*
* Note that this function removes any prior contents of the listbox.
*
* Parameters:
* hList HWND to the listbox to fill.
* cIDEx UINT number of CLSIDs to exclude in lpIDEx
* lpIDEx LPCLSID to CLSIDs to leave out of the listbox.
* fVerify BOOL indicating if we are to validate existence of
* servers before putting them in the list.
*
* Return Value:
* UINT Number of strings added to the listbox, -1 on failure.
*/
UINT UFillClassList(HWND hList, UINT cIDEx, LPCLSID lpIDEx, BOOL fVerify)
{
DWORD dw;
UINT cStrings=0;
UINT i;
UINT cch;
HKEY hKey;
LONG lRet;
HFILE hFile;
OFSTRUCT of;
BOOL fExclude;
LPMALLOC pIMalloc;
LPTSTR pszExec;
LPTSTR pszClass;
LPTSTR pszKey;
LPTSTR pszID;
CLSID clsid;
//Get some work buffers
if (NOERROR!=CoGetMalloc(MEMCTX_TASK, &pIMalloc))
return (UINT)-1;
pszExec=(LPTSTR)pIMalloc->lpVtbl->Alloc(pIMalloc, OLEUI_CCHKEYMAX_SIZE*4);
if (NULL==pszExec)
{
pIMalloc->lpVtbl->Release(pIMalloc);
return (UINT)-1;
}
pszClass=pszExec+OLEUI_CCHKEYMAX;
pszKey=pszClass+OLEUI_CCHKEYMAX;
pszID=pszKey+OLEUI_CCHKEYMAX;
//Open up the root key.
lRet=RegOpenKey(HKEY_CLASSES_ROOT, NULL, &hKey);
if ((LONG)ERROR_SUCCESS!=lRet)
{
pIMalloc->lpVtbl->Free(pIMalloc, (LPVOID)pszExec);
pIMalloc->lpVtbl->Release(pIMalloc);
return (UINT)-1;
}
//Clean out the existing strings.
SendMessage(hList, LB_RESETCONTENT, 0, 0L);
cStrings=0;
while (TRUE)
{
lRet=RegEnumKey(hKey, cStrings++, pszClass, OLEUI_CCHKEYMAX_SIZE);
if ((LONG)ERROR_SUCCESS!=lRet)
break;
//Cheat on lstrcat by using lstrcpy after this string, saving time
cch=lstrlen(pszClass);
// Check for \NotInsertable. if this is found then this overrides
// all other keys; this class will NOT be added to the InsertObject
// list.
lstrcpy(pszClass+cch, TEXT("\\NotInsertable"));
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, pszClass, pszKey, &dw);
if ((LONG)ERROR_SUCCESS==lRet)
continue; // NotInsertable IS found--skip this class
//Check for a \protocol\StdFileEditing\server entry.
lstrcpy(pszClass+cch, TEXT("\\protocol\\StdFileEditing\\server"));
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, pszClass, pszKey, &dw);
if ((LONG)ERROR_SUCCESS==lRet)
{
/*
* Check if the EXE actually exists. By default we don't do this
* to bring up the dialog faster. If an application wants to be
* stringent, they can provide IOF_VERIFYSERVERSEXIST.
*/
hFile = !HFILE_ERROR;
if (fVerify)
hFile=DoesFileExist(pszKey, &of);
if (HFILE_ERROR!=hFile)
{
dw=OLEUI_CCHKEYMAX_SIZE;
*(pszClass+cch)=0; // set back to rootkey
// Get full user type name
lRet=RegQueryValue(hKey, pszClass, pszKey, &dw);
if ((LONG)ERROR_SUCCESS!=lRet)
continue; // error getting type name--skip this class
//Tell the code below to get the string for us.
pszID=NULL;
}
}
else
{
/*
* No \protocol\StdFileEditing\server entry. Look to see if
* there's an Insertable entry. If there is, then use the
* Clsid to look at CLSID\clsid\LocalServer and \InprocServer
*/
lstrcpy(pszClass+cch, TEXT("\\Insertable"));
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, pszClass, pszKey, &dw);
if ((LONG)ERROR_SUCCESS!=lRet)
continue; // Insertable NOT found--skip this class
//Get memory for pszID
pszID=pIMalloc->lpVtbl->Alloc(pIMalloc, OLEUI_CCHKEYMAX_SIZE);
if (NULL==pszID)
continue;
*(pszClass+cch)=0; // set back to rootkey
lstrcat(pszClass+cch, TEXT("\\CLSID"));
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, pszClass, pszID, &dw);
if ((LONG)ERROR_SUCCESS!=lRet)
continue; // CLSID subkey not found
lstrcpy(pszExec, TEXT("CLSID\\"));
lstrcat(pszExec, pszID);
//CLSID\ is 6, dw contains pszID length.
cch=6+(UINT)dw;
lstrcpy(pszExec+cch, TEXT("\\LocalServer"));
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, pszExec, pszKey, &dw);
if ((LONG)ERROR_SUCCESS!=lRet)
{
//Try InprocServer
lstrcpy(pszExec+cch, TEXT("\\InProcServer"));
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, pszExec, pszKey, &dw);
if ((LONG)ERROR_SUCCESS!=lRet)
continue;
}
if (fVerify)
{
if (HFILE_ERROR==DoesFileExist(pszKey, &of))
continue;
}
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, pszExec, pszKey, &dw);
*(pszExec+cch)=0; //Remove \\*Server
if ((LONG)ERROR_SUCCESS!=lRet)
continue;
}
//Get CLSID to add to listbox.
if (NULL==pszID)
{
CLSIDFromProgIDA(pszClass, &clsid);
StringFromCLSIDA(&clsid, &pszID);
}
else
CLSIDFromStringA(pszID, &clsid);
//Check if this CLSID is in the exclusion list.
fExclude=FALSE;
for (i=0; i < cIDEx; i++)
{
if (IsEqualCLSID(&clsid, (LPCLSID)(lpIDEx+i)))
{
fExclude=TRUE;
break;
}
}
if (fExclude)
continue;
//We go through all the conditions, add the string.
lstrcat(pszKey, TEXT("\t"));
// only add to listbox if not a duplicate
if (LB_ERR==SendMessage(hList,LB_FINDSTRING,0,(LPARAM)pszKey)) {
lstrcat(pszKey, pszID);
SendMessage(hList, LB_ADDSTRING, 0, (LPARAM)pszKey);
}
//We always allocated this regardless of the path
pIMalloc->lpVtbl->Free(pIMalloc, (LPVOID)pszID);
}
//Select the first item by default
SendMessage(hList, LB_SETCURSEL, 0, 0L);
RegCloseKey(hKey);
pIMalloc->lpVtbl->Free(pIMalloc, (LPVOID)pszExec);
pIMalloc->lpVtbl->Release(pIMalloc);
return cStrings;
}
/*
* FToggleObjectSource
*
* Purpose:
* Handles enabling, disabling, showing, and flag manipulation when the
* user changes between Create New, Insert File, and Link File in the
* Insert Object dialog.
*
* Parameters:
* hDlg HWND of the dialog
* lpIO LPINSERTOBJECT pointing to the dialog structure
* dwOption DWORD flag indicating the option just selected:
* IOF_SELECTCREATENEW or IOF_SELECTCREATEFROMFILE
*
* Return Value:
* BOOL TRUE if the option was already selected, FALSE otherwise.
*/
BOOL FToggleObjectSource(HWND hDlg, LPINSERTOBJECT lpIO, DWORD dwOption)
{
BOOL fTemp;
UINT uTemp;
DWORD dwTemp;
int i;
//Skip all of this if we're already selected.
if (lpIO->dwFlags & dwOption)
return TRUE;
// if we're switching from "from file" to "create new" and we've got
// an icon for "from file", then we need to save it so that we can
// show it if the user reselects "from file".
if ( (IOF_SELECTCREATENEW == dwOption) &&
(lpIO->dwFlags & IOF_CHECKDISPLAYASICON) )
lpIO->hMetaPictFile = (HGLOBAL)SendDlgItemMessage(hDlg, ID_IO_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
/*
* 1. Change the Display As Icon checked state to reflect the
* selection for this option, stored in the fAsIcon* flags.
*/
fTemp=(IOF_SELECTCREATENEW==dwOption) ? lpIO->fAsIconNew : lpIO->fAsIconFile;
if (fTemp)
lpIO->dwFlags |=IOF_CHECKDISPLAYASICON;
else
lpIO->dwFlags &=~IOF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, ID_IO_DISPLAYASICON
, (BOOL)(0L!=(lpIO->dwFlags & IOF_CHECKDISPLAYASICON)));
EnableWindow(GetDlgItem(hDlg, ID_IO_CHANGEICON), fTemp);
/*
* 2. Display Icon: Enabled on Create New or on Create from File if
* there is a selected file.
*/
fTemp=(IOF_SELECTCREATENEW==dwOption) ? TRUE : lpIO->fFileSelected;
EnableWindow(GetDlgItem(hDlg, ID_IO_DISPLAYASICON), fTemp);
//OK and Link follow the same enabling as Display As Icon.
EnableWindow(GetDlgItem(hDlg, IDOK), fTemp);
EnableWindow(GetDlgItem(hDlg, ID_IO_LINKFILE), fTemp);
//3. Enable Browse... when Create from File is selected.
fTemp=(IOF_SELECTCREATENEW==dwOption);
EnableWindow(GetDlgItem(hDlg, ID_IO_FILE), !fTemp);
EnableWindow(GetDlgItem(hDlg, ID_IO_FILEDISPLAY), !fTemp);
/*
* 4. Switch between Object Type listbox on Create New and
* file buttons on others.
*/
uTemp=(fTemp) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, ID_IO_OBJECTTYPELIST, uTemp);
StandardShowDlgItem(hDlg, ID_IO_OBJECTTYPETEXT, uTemp);
uTemp=(fTemp) ? SW_HIDE : SW_SHOWNORMAL;
StandardShowDlgItem(hDlg, ID_IO_FILETEXT, uTemp);
StandardShowDlgItem(hDlg, ID_IO_FILETYPE, uTemp);
StandardShowDlgItem(hDlg, ID_IO_FILEDISPLAY, uTemp);
StandardShowDlgItem(hDlg, ID_IO_FILE, uTemp);
//Link is always hidden if IOF_DISABLELINK is set.
if (IOF_DISABLELINK & lpIO->dwFlags)
uTemp=SW_HIDE;
StandardShowDlgItem(hDlg, ID_IO_LINKFILE, uTemp); //last use of uTemp
//5. Clear out existing any flags selection and set the new one
dwTemp=IOF_SELECTCREATENEW | IOF_SELECTCREATEFROMFILE;
lpIO->dwFlags=(lpIO->dwFlags & ~dwTemp) | dwOption;
/*
* Show or hide controls as appropriate. Do the icon
* display last because it will take some time to repaint.
* If we do it first then the dialog looks too sluggish.
*/
i=(lpIO->dwFlags & IOF_CHECKDISPLAYASICON) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, ID_IO_CHANGEICON, i);
StandardShowDlgItem(hDlg, ID_IO_ICONDISPLAY, i);
//6.Change result display
SetInsertObjectResults(hDlg, lpIO);
/*
* 7. For Create New, twiddle the listbox to think we selected it
* so it updates the icon from the object type. set the focus
* to the list box.
*
* For Insert or Link file, set the focus to the filename button
* and update the icon if necessary.
*/
if (fTemp) {
UpdateClassIcon(hDlg, lpIO, GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST));
SetFocus(GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST));
}
else
{
if (lpIO->fAsIconFile && (NULL != lpIO->hMetaPictFile) )
{
SendDlgItemMessage(hDlg, ID_IO_ICONDISPLAY, IBXM_IMAGESET, (WPARAM)lpIO->hMetaPictFile, 0L);
lpIO->hMetaPictFile = 0;
}
else
UpdateClassIcon(hDlg, lpIO, NULL);
SetFocus(GetDlgItem(hDlg, ID_IO_FILE));
}
return FALSE;
}
/*
* UpdateClassType
*
* Purpose:
* Updates static text control to reflect current file type. Assumes
* a valid filename.
*
* Parameters
* hDlg HWND of the dialog box.
* lpIO LPINSERTOBJECT pointing to the dialog structure
* fSet TRUE to set the text, FALSE to explicitly clear it
*
* Return Value:
* None
*/
void UpdateClassType(HWND hDlg, LPINSERTOBJECT lpIO, BOOL fSet)
{
CLSID clsid;
TCHAR szFileName[OLEUI_CCHPATHMAX];
TCHAR szFileType[OLEUI_CCHLABELMAX];
*szFileType = TEXT('\0');
if (fSet)
{
GetDlgItemText(hDlg, ID_IO_FILEDISPLAY, (LPTSTR)szFileName, OLEUI_CCHPATHMAX);
if (NOERROR == GetClassFileA(szFileName, &clsid) )
OleStdGetUserTypeOfClass(&clsid, szFileType, OLEUI_CCHLABELMAX_SIZE, NULL);
}
SetDlgItemText(hDlg, ID_IO_FILETYPE, (LPTSTR)szFileType);
return;
}
/*
* UpdateClassIcon
*
* Purpose:
* Handles LBN_SELCHANGE for the Object Type listbox. On a selection
* change, we extract an icon from the server handling the currently
* selected object type using the utility function HIconFromClass.
* Note that we depend on the behavior of FillClassList to stuff the
* object class after a tab in the listbox string that we hide from
* view (see WM_INITDIALOG).
*
* Parameters
* hDlg HWND of the dialog box.
* lpIO LPINSERTOBJECT pointing to the dialog structure
* hList HWND of the Object Type listbox.
*
* Return Value:
* None
*/
void UpdateClassIcon(HWND hDlg, LPINSERTOBJECT lpIO, HWND hList)
{
UINT iSel;
DWORD cb;
LPMALLOC pIMalloc;
LPTSTR pszName, pszCLSID, pszTemp;
HGLOBAL hMetaPict;
LRESULT dwRet;
//If Display as Icon is not selected, exit
if (!(lpIO->dwFlags & IOF_CHECKDISPLAYASICON))
return;
/*
* When we change object type selection, get the new icon for that
* type into our structure and update it in the display. We use the
* class in the listbox when Create New is selected or the association
* with the extension in Create From File.
*/
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
iSel=(UINT)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (LB_ERR==(int)iSel)
return;
//Check to see if we've already got the hMetaPict for this item
dwRet=SendMessage(hList, LB_GETITEMDATA, (WPARAM)iSel, 0L);
hMetaPict=(HGLOBAL)(UINT)dwRet;
if (hMetaPict)
{
//Yep, we've already got it, so just display it and return.
SendDlgItemMessage(hDlg, ID_IO_ICONDISPLAY, IBXM_IMAGESET, (WPARAM)hMetaPict, 0L);
return;
}
iSel=(UINT)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (LB_ERR==(int)iSel)
return;
//Allocate a string to hold the entire listbox string
cb=SendMessage(hList, LB_GETTEXTLEN, iSel, 0L);
}
else
cb=OLEUI_CCHPATHMAX_SIZE;
if (NOERROR!=CoGetMalloc(MEMCTX_TASK, &pIMalloc))
return;
pszName=(LPTSTR)pIMalloc->lpVtbl->Alloc(pIMalloc, cb+1*sizeof(TCHAR) );
if (NULL==pszName)
{
pIMalloc->lpVtbl->Release(pIMalloc);
return;
}
*pszName=0;
//Get the clsid we want.
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
//Grab the classname string from the list
SendMessage(hList, LB_GETTEXT, iSel, (LONG)pszName);
//Set pointer to CLSID (string)
pszCLSID=PointerToNthField(pszName, 2, TEXT('\t'));
//Null terminate pszName string
#ifdef WIN32
// AnsiPrev is obsolete in Win32
pszTemp=CharPrev((LPCTSTR) pszName,(LPCTSTR) pszCLSID);
#else
pszTemp=AnsiPrev((LPCTSTR) pszName,(LPCTSTR) pszCLSID);
#endif
*pszTemp=TEXT('\0');
CLSIDFromStringA(pszCLSID, &lpIO->clsid);
#ifdef OLE201
hMetaPict = GetIconOfClass(ghInst, &lpIO->clsid, NULL, TRUE);
#endif
}
else
{
//Get the class from the filename
GetDlgItemText(hDlg, ID_IO_FILEDISPLAY, pszName, OLEUI_CCHPATHMAX);
#ifdef OLE201
hMetaPict = OleGetIconOfFileA(pszName,
lpIO->dwFlags & IOF_CHECKLINK ? TRUE : FALSE);
#endif
}
//Replace the current display with this new one.
SendDlgItemMessage(hDlg, ID_IO_ICONDISPLAY, IBXM_IMAGESET, (WPARAM)hMetaPict, 0L);
//Enable or disable "Change Icon" button depending on whether
//we've got a valid filename or not.
EnableWindow(GetDlgItem(hDlg, ID_IO_CHANGEICON), hMetaPict ? TRUE : FALSE);
//Save the hMetaPict so that we won't have to re-create
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
SendMessage(hList, LB_SETITEMDATA, (WPARAM)iSel, hMetaPict);
pIMalloc->lpVtbl->Free(pIMalloc, (LPVOID)pszName);
pIMalloc->lpVtbl->Release(pIMalloc);
return;
}
/*
* SetInsertObjectResults
*
* Purpose:
* Centralizes setting of the Result and icon displays in the Insert Object
* dialog. Handles loading the appropriate string from the module's
* resources and setting the text, displaying the proper result picture,
* and showing the proper icon.
*
* Parameters:
* hDlg HWND of the dialog box so we can access controls.
* lpIO LPINSERTOBJECT in which we assume that the
* current radiobutton and Display as Icon selections
* are set. We use the state of those variables to
* determine which string we use.
*
* Return Value:
* None
*/
void SetInsertObjectResults(HWND hDlg, LPINSERTOBJECT lpIO)
{
LPTSTR pszT, psz1, psz2, psz3, psz4, pszTemp;
UINT i, iString1, iString2, iImage, cch;
LPMALLOC pIMalloc;
BOOL fAsIcon;
/*
* We need scratch memory for loading the stringtable string, loading
* the object type from the listbox, and constructing the final string.
* We therefore allocate three buffers as large as the maximum message
* length (512) plus the object type, guaranteeing that we have enough
* in all cases.
*/
i=(UINT)SendDlgItemMessage(hDlg, ID_IO_OBJECTTYPELIST, LB_GETCURSEL, 0, 0L);
cch=512+
(UINT)SendDlgItemMessage(hDlg, ID_IO_OBJECTTYPELIST, LB_GETTEXTLEN, i, 0L);
if (NOERROR!=CoGetMalloc(MEMCTX_TASK, &pIMalloc))
return;
pszTemp=(LPTSTR)pIMalloc->lpVtbl->Alloc(pIMalloc, (DWORD)(4*cch*sizeof(TCHAR)));
if (NULL==pszTemp)
{
pIMalloc->lpVtbl->Release(pIMalloc);
return;
}
psz1=pszTemp;
psz2=psz1+cch;
psz3=psz2+cch;
psz4=psz3+cch;
fAsIcon=(0L!=(lpIO->dwFlags & IOF_CHECKDISPLAYASICON));
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
iString1 = fAsIcon ? IDS_IORESULTNEWICON : IDS_IORESULTNEW;
iString2 = 0;
iImage = fAsIcon ? RESULTIMAGE_EMBEDICON : RESULTIMAGE_EMBED;
}
if (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
{
//Pay attention to Link checkbox
if (lpIO->dwFlags & IOF_CHECKLINK)
{
iString1 = fAsIcon ? IDS_IORESULTLINKFILEICON1 : IDS_IORESULTLINKFILE1;
iString2 = fAsIcon ? IDS_IORESULTLINKFILEICON2 : IDS_IORESULTLINKFILE2;
iImage =fAsIcon ? RESULTIMAGE_LINKICON : RESULTIMAGE_LINK;
}
else
{
iString1 = IDS_IORESULTFROMFILE1;
iString2 = fAsIcon ? IDS_IORESULTFROMFILEICON2 : IDS_IORESULTFROMFILE2;
iImage =fAsIcon ? RESULTIMAGE_EMBEDICON : RESULTIMAGE_EMBED;
}
}
//Default is an empty string.
*psz1=0;
if (0!=LoadString(ghInst, iString1, psz1, cch))
{
// Load second string, if necessary
if ( (0 != iString2)
&& (0 != LoadString(ghInst, iString2, psz4, cch)) )
{
lstrcat(psz1, psz4); // concatenate strings together.
}
//In Create New, do the extra step of inserting the object type string
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
SendDlgItemMessage(hDlg, ID_IO_OBJECTTYPELIST, LB_GETTEXT
, i, (LONG)psz2);
//Null terminate at any tab (before the classname)
pszT=psz2;
while (TEXT('\t')!=*pszT && 0!=*pszT)
pszT++;
*pszT=0;
//Build the string and point psz1 to it.
wsprintf(psz3, psz1, psz2);
psz1=psz3;
}
}
//If LoadString failed, we simply clear out the results (*psz1=0 above)
SetDlgItemText(hDlg, ID_IO_RESULTTEXT, psz1);
//Go change the image and Presto! There you have it.
SendDlgItemMessage(hDlg, ID_IO_RESULTIMAGE, RIM_IMAGESET, iImage, 0L);
pIMalloc->lpVtbl->Free(pIMalloc, (LPVOID)pszTemp);
pIMalloc->lpVtbl->Release(pIMalloc);
return;
}
/*
* FValidateInsertFile
*
* Purpose:
* Given a possibly partial pathname from the file edit control,
* attempt to locate the file and if found, store the full path
* in the edit control ID_IO_FILEDISPLAY.
*
* Parameters:
* hDlg HWND of the dialog box.
* fTellUser BOOL TRUE if function should tell user, FALSE if
* function should validate silently.
*
* Return Value:
* BOOL TRUE if the file is acceptable, FALSE otherwise.
*/
BOOL FValidateInsertFile(HWND hDlg, BOOL fTellUser, UINT FAR* lpnErrCode)
{
OFSTRUCT of;
HFILE hFile;
TCHAR szFile[OLEUI_CCHPATHMAX];
*lpnErrCode = 0;
/*
* To validate we attempt OpenFile on the string. If OpenFile
* fails then we display an error. If not, OpenFile will store
* the complete path to that file in the OFSTRUCT which we can
* then stuff in the edit control.
*/
if (0==GetDlgItemText(hDlg, ID_IO_FILEDISPLAY, szFile, OLEUI_CCHPATHMAX))
return FALSE; // #4569 : return FALSE when there is no text in ctl
hFile=DoesFileExist(szFile, &of);
// if file is currently open (ie. sharing violation) OleCreateFromFile
// and OleCreateLinkToFile can still succeed; do not consider it an
// error.
if (HFILE_ERROR==hFile && 0x0020/*sharing violation*/!=of.nErrCode)
{
*lpnErrCode = of.nErrCode;
if (fTellUser)
OpenFileError(hDlg, of.nErrCode, szFile);
return FALSE;
}
//OFSTRUCT contains an OEM name, not ANSI as we need for the edit box.
OemToAnsi(of.szPathName, of.szPathName);
SetDlgItemText(hDlg, ID_IO_FILEDISPLAY, of.szPathName);
return TRUE;
}
/*
* InsertObjectCleanup
*
* Purpose:
* Clears cached icon metafiles from those stored in the listbox.
*
* Parameters:
* hDlg HWND of the dialog.
*
* Return Value:
* None
*/
void InsertObjectCleanup(HWND hDlg)
{
HWND hList;
UINT iItems;
HGLOBAL hMetaPict;
LRESULT dwRet;
UINT i;
hList=GetDlgItem(hDlg, ID_IO_OBJECTTYPELIST);
iItems=(UINT)SendMessage(hList, LB_GETCOUNT, 0, 0L);
for (i=0; i < iItems; i++)
{
dwRet=SendMessage(hList, LB_GETITEMDATA, (WPARAM)i, 0L);
//Cast of LRESULT to UINT to HGLOBAL portable to Win32.
hMetaPict=(HGLOBAL)(UINT)dwRet;
if (hMetaPict)
OleUIMetafilePictIconFree(hMetaPict);
}
return;
}
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